| Avi, Helmuth (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) |
Attest |
Sassone |
Stempelmarke 3 |
| Diena, Enzo (Sonstiges) |
Attest |
Sassone |
T 16 |
| Colla, Giorgio (APFIP (Associazione Periti Filatelici Italiani Professioni.)) |
Attest |
Sassone |
T 16; T 17; T 26 |
| Bottacchi, Giacomo (APFIP (Associazione Periti Filatelici Italiani Professioni.)) |
Attest |
Sassone |
T 16; T 17; T 26 |
| Diena, Enzo (Sonstiges) |
Attest |
Sassone |
T 17 |
| Bifani, Giorgio (Sonstiges) |
Attest |
Sassone |
T 17 |
| Diena, Enzo (Sonstiges) |
Attest |
Sassone |
T 19; T 21; T 22 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
T 20 |
